gpu: nvgpu: replace wait_queue_head_t with nvgpu_cond

Replace existing usages of wait_queue_head_t with struct nvgpu_cond and
using the corresponding APIs in order to reduce Linux dependencies in NVGPU.

JIRA NVGPU-205

Change-Id: I85850369c3c47d3e1704e4171b1d172361842423
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1575778
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/sched_gk20a.c b/drivers/gpu/nvgpu/gk20a/sched_gk20a.c
index d635b43b..a77536af 100644
--- a/drivers/gpu/nvgpu/gk20a/sched_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/sched_gk20a.c
@@ -58,8 +58,8 @@ ssize_t gk20a_sched_dev_read(struct file *filp, char __user *buf,
                 nvgpu_mutex_release(&sched->status_lock);
                 if (filp->f_flags & O_NONBLOCK)
                         return -EAGAIN;
-                err = wait_event_interruptible(sched->readout_wq,
-                        sched->status);
+                err = NVGPU_COND_WAIT_INTERRUPTIBLE(&sched->readout_wq,
+                        sched->status, 0);
                 if (err)
                         return err;
                 nvgpu_mutex_acquire(&sched->status_lock);
@@ -88,7 +88,7 @@ unsigned int gk20a_sched_dev_poll(struct file *filp, poll_table *wait)
         gk20a_dbg(gpu_dbg_fn | gpu_dbg_sched, "");
 
         nvgpu_mutex_acquire(&sched->status_lock);
-        poll_wait(filp, &sched->readout_wq, wait);
+        poll_wait(filp, &sched->readout_wq.wq, wait);
         if (sched->status)
                 mask |= POLLIN | POLLRDNORM;
         nvgpu_mutex_release(&sched->status_lock);
@@ -552,7 +552,7 @@ void gk20a_sched_ctrl_tsg_added(struct gk20a *g, struct tsg_gk20a *tsg)
         NVGPU_SCHED_SET(tsg->tsgid, sched->recent_tsg_bitmap);
         sched->status |= NVGPU_SCHED_STATUS_TSG_OPEN;
         nvgpu_mutex_release(&sched->status_lock);
-        wake_up_interruptible(&sched->readout_wq);
+        nvgpu_cond_signal_interruptible(&sched->readout_wq);
 }
 
 void gk20a_sched_ctrl_tsg_removed(struct gk20a *g, struct tsg_gk20a *tsg)
@@ -609,7 +609,7 @@ int gk20a_sched_ctrl_init(struct gk20a *g)
                 goto free_recent;
         }
 
-        init_waitqueue_head(&sched->readout_wq);
+        nvgpu_cond_init(&sched->readout_wq);
 
         err = nvgpu_mutex_init(&sched->status_lock);
         if (err)